Addiction
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Randomized Controlled Trial
Effect of reducing the nicotine content of cigarettes on cigarette smoking behavior and tobacco smoke toxicant exposure: 2-year follow up.
A broadly mandated reduction of the nicotine content (RNC) of cigarettes has been proposed in the United States to reduce the addictiveness of cigarettes, to prevent new smokers from becoming addicted and to facilitate quitting in established smokers. The primary aim of this study was to determine whether following 7 months of smoking very low nicotine content cigarettes (VLNC), and then returning to their own cigarettes, smokers would demonstrate persistently reduced nicotine intake compared with baseline or quit smoking. ⋯ In smokers not interested in quitting, reducing the nicotine content in cigarettes over 12 months does not appear to result in extinction of nicotine dependence, assessed by persistently reduced nicotine intake or quitting smoking over the subsequent 12 months.
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Randomized Controlled Trial
Changes in daily substance use among people experiencing homelessness and mental illness: 24-month outcomes following randomization to Housing First or usual care.
Housing First (HF) is an established intervention for people experiencing homelessness and mental illness. We compared daily substance use (DSU) between HF and treatment as usual (TAU). ⋯ Housing First, an intervention to support recovery for homeless people who have co-occurring mental illness and substance use disorders, did not reduce daily substance use compared with treatment as usual after 12 or 24 months.
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Randomized Controlled Trial
The effectiveness of brief alcohol interventions delivered by community pharmacists: randomized controlled trial.
To undertake the first randomized controlled trial to evaluate the effectiveness of a brief intervention delivered by community pharmacists to reduce hazardous or harmful drinking. ⋯ A brief intervention delivered by community pharmacists appears to have had no effect in reducing hazardous or harmful alcohol consumption.